Don't worry about failures, worry about the chances you miss when you don't even try.

The tongue is like a sharp knife, killing without drawing blood. Words from a skilled person can cause greater harm than a warrior’s weapon.

经常静坐思考，来收拢思想；减少饮酒色欲，来清理思想；摒除嗜好情欲，来修养思想；体味古人教训，来警戒思想；悟察至理名言，来明确思想。